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Finding the Fourth Proportional to 127,265.74, 175,714.59 and 79,540.54

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Solution

The fourth proportional to 127,265.74, 175,714.59 and 79,540.54 is: 109,820.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,265.74 : 175,714.59 = 79,540.54 : x
  2. Step 2: Convert to fraction form
    127,265.74/175,714.59 = 79,540.54/x
  3. Step 3: Cross multiply
    127,265.74x = 175,714.59 × 79,540.54
  4. Step 4: Simplify right side
    127,265.74x = 13,976,433,374.48
  5. Step 5: Solve for x
    x = 13,976,433,374.48/127,265.74
  6. Step 6: Final answer
    x = 109,820.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.